We haul out from November thru April, and the boat goes on the hard (with mast up most years) under a full cover. We‘ll get lots of weeks in the twenties, and sometimes colder. We pull all the cushions, sails, life jackets, clothing, towels, Bimini and sail cover, and anything in the galley that’s food or textile. We replace halyards with messenger lines and take most running rigging and dock lines home to hang in the basement. We remove books and games that might mildew. We leave the dishes, flatware, pots and pans, and other hard surface items. We drain the water tanks and put the pink antifreeze in the fresh water system, sinks, ice box, head, and bilges (where we get some snow/rain down the mast. We leave the covers ajar over the icebox and salon/ settee storage areas, because we found some mildew there a couple years ago.We pull anything liquid that might freeze (We forgot some cleaning stuff under the head sink one year). We remove our mfd and VHF, but that’s more for security than winterizing. We leave tools on board for projects. Although we have access to power, we don’t leave it plugged in unless we’re on the boat, working on a project. Because we have the cover, we leave both hatches open a crack for air circulation